Say hello to the thermostat that controls 60% of your energy bill. From <b>Nest</b>, the<b> Learning Thermostat </b>gets to know the temperature you most comfortable in, turns itself down when your&#39;re away and even learns how the home warms up to ensure it only uses energy when necessary. This innovative creation takes note of your schedule and builds around it, meanwhile, the advanced technology allows you to adjust the temperature from your smartphone.